JP2012214266A - Packing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing device capable of properly installing various film rolls.SOLUTION: In this packing device, an installation mechanism 30 is attached with the film roll arranged by winding a packing film. A width adjusting mechanism 83 changes a width of a groove by moving at least one of a pair of groove forming members. The width adjusting mechanism 83 moves the pair of groove forming members 82 in the mutually separating or approaching direction by two rack gears 84 and a gear 86. Thus, the installation mechanism 30 has a pair of side surfaces 82b for storing an outer diameter of a shaft member of projecting outside in the axial direction from the wound film, and is arranged so that a distance between the pair of side surfaces 82b can be changed.

Description

  The present invention relates to a packaging device, and more particularly to a packaging device for packaging using a film roll film.

  For example, a packaging apparatus is known that wraps a bundle of paper such as newspapers and advertisements using a film for delivery (see, for example, Patent Document 1). In such a wrapping apparatus, a film roll provided by winding a film around a core is attached, and a paper bundle is sandwiched while the film is pulled out from the film roll, and then the films are welded to wrap the paper bundle.

Japanese Patent Laying-Open No. 2005-104542

  Such film rolls may have different core lengths even if the film width is the same. For example, in a film roll in which the core protrudes from the width of the film, the film roll can be attached by inserting the outer diameter of the protruding core into the groove. On the other hand, for example, in a film roll in which the core does not protrude from the width of the film, it is difficult to perform such positioning. Therefore, an adapter is inserted into the core to cause the shaft to protrude from the width of the film, and this is grooved. It is also possible to insert the film roll and attach the film roll. However, the thickness of the portion protruding from the width of the film in this way may be different between the core and the adapter. Also, the thickness of the core protruding from the width of the film may vary depending on the type of film roll. For this reason, the packaging apparatus which can attach various kinds of film rolls appropriately is calculated | required on the market.

  This invention is made | formed in view of such a problem, The objective is to provide the packaging apparatus which can attach various film rolls appropriately.

  In order to solve the above-described problems, a packaging apparatus according to an aspect of the present invention mounts a film roll provided with a packaging film wound using a shaft member that protrudes axially outward from the film. A mounting mechanism is provided. The mounting mechanism has a groove in which the outer diameter of the shaft member is accommodated, and is provided so that the width of the groove can be changed. According to this aspect, even when the outer diameter of the shaft member of the film roll is different, the film roll can be appropriately attached to the packaging device by changing the width of the groove according to the outer diameter.

  The mounting mechanism includes a first groove provided to accommodate the outer diameter of the first shaft member, and a second groove having a width different from that of the first groove to accommodate the outer diameter of the second shaft member. And a mounted portion to which the provided mounting member can be attached. According to this aspect, by attaching the attachment member, it is possible to attach a film roll having a diameter different from that of the film roll attached in a state where the attachment member is not attached. For this reason, a plurality of types of film rolls can be mounted by a simple process of attaching / detaching the mounting member.

  The mounting mechanism may include a pair of groove forming members each constituting an edge of the groove, and a width adjusting mechanism that changes the width of the groove by moving at least one of the pair of groove forming members. . According to this aspect, it is possible to appropriately mount a plurality of types of film rolls having different shaft member diameters.

  The mounting mechanism includes a first groove provided to accommodate the outer diameter of the first shaft member, and a second groove having a width different from that of the first groove to accommodate the outer diameter of the second shaft member. And a mounting member disposed at a predetermined position in the first groove so that the second shaft member can be accommodated in the second groove. When the first shaft member is mounted, the mounting member may be retracted from a predetermined position so that the first shaft member can be accommodated in the first groove. According to this aspect, the film roll can be easily mounted by moving the mounting member as the film roll is mounted.

  ADVANTAGE OF THE INVENTION According to this invention, the packaging apparatus which can attach various film rolls appropriately can be provided.

It is a perspective view of the packaging device concerning a 1st embodiment. It is a vertical sectional view of the packaging device according to the first embodiment. It is sectional drawing of the film roll with which a packaging apparatus is mounted | worn. (A) is sectional drawing of the film roll with which a packaging apparatus is mounted | worn. (B) is a figure which shows the state by which the adapter 66 was inserted in the film roll 32B. (A) And (b) is a perspective view of the mounting mechanism which concerns on 1st Embodiment. (A) And (b) is a perspective view of the mounting mechanism which concerns on 2nd Embodiment. (A) And (b) is a perspective view of the mounting mechanism which concerns on 3rd Embodiment. (A) And (b) is a perspective view of the mounting mechanism which concerns on 4th Embodiment. (A) is the perspective view of the mounting mechanism which concerns on 5th Embodiment, (b) is the figure which looked at the mounting mechanism from the viewpoint P of (a). (A) is a top view of a mounting mechanism when a film roll is mounted. (B) is a top view of a mounting mechanism when a film roll is mounted. It is a perspective view of the mounting mechanism which concerns on 6th Embodiment. (A) is a front view of a mounting mechanism when a film roll is mounted. (B) is a front view of a mounting mechanism when a film roll is mounted. It is a figure which shows the support plate which concerns on 7th Embodiment.

  Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a perspective view of a packaging device 10 according to the first embodiment. The packaging device 10 includes a front plate 12, a rear plate 14, a paper feed tray 16, and a stacker 18. The paper feed tray 16 is disposed so as to incline suddenly in the upper part between the front plate 12 and the rear plate 14. By inserting the sheet bundle 2 into the sheet feeding tray 16, the sheet bundle 2 enters the inside of the packaging apparatus 10 due to gravity, and the sheet bundle 2 is film-wrapped inside the packaging apparatus 10. The stacker 18 is disposed at a lower portion between the front plate 12 and the rear plate 14 and is loaded with the discharged package.

  FIG. 2 is a vertical cross-sectional view of the packaging device 10 according to the first embodiment. FIG. 2 shows a cross-sectional view of the packaging apparatus 10 as seen from the front when the packaging device 10 is cut in a plane parallel to the front plate 12 and the rear plate 14 between the front plate 12 and the rear plate 14. The packaging device 10 includes a mounting mechanism 30, a welding / cutting heater 40, a belt conveyance mechanism 46, and a discharge plate 52.

  The paper feed tray 16 is disposed so as to incline suddenly from the upper right to the lower left and extend in the front-rear direction. The mounting mechanism 30 mounts a film roll provided with a packaging film 34 wound thereon. Since two film rolls 32 are mounted on the packaging device 10, two mounting mechanisms 30 are provided on the front side and the rear side of the device, respectively. Specifically, the two attachment mechanisms 30 at the front and rear of the apparatus have two films so that the two attached film rolls 32 extend in the front-rear direction of the packaging apparatus 10 with the paper feed tray 16 interposed therebetween. Each roll 32 is mounted.

  A support roller 36 is provided below the mounting mechanism 30. Two support rollers 36 are provided and extend in the longitudinal direction of the apparatus in parallel with the two film rolls 32 mounted on the mounting mechanism 30. The support roller 36 is rotatably supported by the front plate 12 and the rear plate 14. The support roller 36 supports the film roll 32 that is about to move downward due to its weight in contact with the lower side, and follows the rotation of the film roll 32. For this reason, even when the film 34 of the film roll 32 is consumed and the diameter of the film roll 32 becomes small, the film roll 32 is similarly brought into contact with and supported by the rotation of the film roll 32. By providing the support roller 36 in this way, the film 34 can be smoothly pulled out from the film roll 32.

  The welding / cutting heater 40 is provided below the paper feed tray 16, and a belt conveyance mechanism 46 is further provided therebelow. The packaging device 10 is provided with an electronic control unit (not shown). The electronic control unit includes a CPU that executes various calculations, a ROM that stores various control programs, and a RAM that is used as a work area for data storage and program execution. The electronic control unit controls the packaging of the inserted sheet bundle 2 by controlling the operation of an actuator or the like in the packaging apparatus 10.

  A first sensor 42 is disposed between the paper feed tray 16 and the welding cutting heater 40. The first sensor 42 detects the leading end of the sheet bundle 2 inserted in the sheet feeding tray 16. When the leading edge of the sheet bundle 2 is detected by the first sensor 42, the electronic control unit starts the operation of the belt conveyance mechanism 46.

  The films 34 fed from the two film rolls 32 are welded to each other by the welding and cutting heater 40 when the sheet bundle 2 is packaged below the paper feed tray 16 and cut at the welded portions. At this time, the ends of the two films 34 are welded to each other even after cutting. For this reason, the sheet bundle 2 inserted in the sheet feeding tray 16 comes into contact with the portion where the two films 34 are welded to each other, and moves downward while pulling out the film 34 by gravity. When the leading edge of the sheet bundle 2 reaches the belt conveyance mechanism 46, the sheet bundle 2 is conveyed further downward by the belt conveyance mechanism 46 with the front and back surfaces covered with the film 34.

  A second sensor 44 is disposed between the welding cutting heater 40 and the belt conveyance mechanism 46. When the rear end of the sheet bundle 2 is detected by the second sensor 44, the electronic control unit temporarily stops the operation of the belt conveyance mechanism 46 and stops the conveyance of the sheet bundle 2. When the conveyance of the sheet bundle 2 is stopped, the electronic control unit welds the film 34 in the upstream portion of the sheet bundle 2 by the welding cutting heater 40, and at the same time, the side of the sheet bundle 2 is welded by the welding heater 48. The film 34 is welded. When the welding is completed, the electronic control unit operates the belt conveyance mechanism 46 with the welding cutting heater 40 pressed against the film 34. As a result, the film surrounding the sheet bundle 2 is pulled downward and the portion pressed by the film 34 is cut. This is the rear end of the package.

  When the cutting by the welding cutting heater 40 is completed, the electronic control unit operates the belt conveyance mechanism 46 again. Thus, the package in which the sheet bundle 2 is packaged by the film 34 is conveyed downward. A third sensor 50 is disposed between the belt conveyance mechanism 46 and the discharge plate 52. When the rear end of the sheet bundle 2 included in the package is detected by the third sensor 50, the electronic control unit stops the operation of the belt conveyance mechanism 46. In addition, the operation of the belt conveyance mechanism 46 may be stopped after a predetermined time has elapsed since the belt conveyance mechanism 46 is activated when the rear end of the package is welded. The package carried out from the belt conveyance mechanism 46 passes over the discharge plate 52 and falls onto the stacker 18 by gravity, and is loaded thereon.

  FIG. 3 is a cross-sectional view of the film roll 32 </ b> A attached to the packaging device 10. There are two types of film rolls 32 used in the packaging apparatus 10, and the film roll 32A is one of them. The film roll 32 </ b> A is provided by winding a film 34 around a core 62. The core 62 is formed in a cylindrical shape having a length longer than the width of the film 34. For this reason, the end of the core 62 protrudes from the end of the wound film 34. The end of the core 62 protruding from the film 34 is used as a shaft member that is rotatably supported when the film 34 is pulled out and the film roll 32 rotates.

  FIG. 4A is a cross-sectional view of the film roll 32 </ b> B attached to the packaging device 10. The film roll 32B is one of the two types of film rolls 32 described above. The film roll 32 </ b> B is provided by winding the film 34 around the core 64. The core 64 is formed in a cylindrical shape having a length substantially the same as the width of the film 34. For this reason, the end of the core 64 hardly protrudes from the end of the wound film 34, and the end of the film 34 and the end of the core 64 are located on substantially the same plane.

  Unlike the film roll 32 </ b> A, the film roll 32 </ b> B does not protrude from the end of the film 34, so that it is difficult to use the core 64 as a shaft member that is rotatably supported. For this reason, when using the film roll 32 </ b> B, the adapter 66 is inserted into the core 64.

  FIG. 4B is a diagram illustrating a state in which the adapter 66 is inserted into the film roll 32B. In FIG.4 (b), only the film roll 32B is represented with sectional drawing. The adapter 66 has a shaft 68 and a roller 70. The shaft 68 is formed in a columnar shape that is longer than the core 64 and smaller in outer diameter than the inner diameter of the core 64. The roller 70 has an outer diameter substantially the same as the inner diameter of the core 64 and is formed in an annular shape having an inner diameter substantially the same as the outer diameter of the adapter 66. An adapter 66 is provided by inserting and fixing the shaft 68 in the central hole of each of the two rollers 70. As shown in FIG. 4B, the adapter 66 is inserted into the core 64 of the film roll 32B so that the two ends of the shaft 68 protrude from the ends of the wound film 34, respectively. Thereby, the projecting end portion of the shaft 68 can be used as a shaft member that is rotatably supported when the film roll 32B rotates.

  However, the outer diameter of the shaft 68 is smaller than the outer diameter of the core 62, and it is necessary to mount the film roll 32 in consideration of the difference in diameter. For this reason, in the first embodiment, the mounting mechanism 30 has a groove that accommodates the outer diameter of the shaft member that protrudes outward in the axial direction from the wound film 34, and the width of the groove can be changed. Yes.

  FIG. 5A and FIG. 5B are perspective views of the mounting mechanism 30 according to the first embodiment. The mounting mechanism 30 shown in FIGS. 5A and 5B shows the mounting mechanism 30 at the rear of the apparatus. A mounting mechanism 30 that is symmetrical to this is also provided in front of the apparatus. Hereinafter, the mounting mechanism 30 at the rear of the apparatus will be described, and the description of the mounting mechanism 30 at the front of the apparatus will be omitted.

  The mounting mechanism 30 includes a support plate 80, a pair of groove forming members 82, and a width adjusting mechanism 83. The support plate 80 is formed by bending a flat plate so that a concave portion 80a extending in the vertical direction is formed at the center. A groove 80b having a width larger than the outer diameter of the shaft 68 is formed in the recess 80a. Each of the pair of groove forming members 82 is formed by bending one end of a flat plate into an L shape.

  Each of the pair of groove forming members 82 is formed symmetrically with respect to each other. The pair of groove forming members 82 are superimposed on the support plate 80 so that the respective bent portions of the groove forming members 82 are accommodated in the recessed portions 80a. The groove forming member 82 is formed with a guide hole 82a which is a long hole extending in the left-right direction. Four pins 88 are attached to the support plate 80, the two pins 88 are inserted into the two guide holes 82a of one groove forming member 82, and a stopper 90 is attached to the tip thereof. Thus, each of the pair of groove forming members 82 is supported by the stopper 90 so as to be movable in the left-right direction.

  The width adjustment mechanism 83 has a rack gear 84 and a gear 86. The rack gear 84 is attached to each of the pair of groove forming members 82 so that the gear portions 84a face each other. A gear 86 is provided between the two rack gears 84 so as to mesh with both of the opposing gear portions 84a. The gear 86 is rotatably supported by the support plate 80. Thus, the pair of groove forming members 82 can move in directions away from or close to each other.

  Two grooves 82 c are provided at the lower edge of the groove forming member 82. On the other hand, a leaf spring 92 is disposed below the groove forming member 82. The leaf spring 92 is disposed so as to be pressed against the lower edge portion of the groove forming member 82. Therefore, the groove forming member 82 is positioned at the position where the leaf spring 92 enters the groove 82c. Therefore, the leaf spring 92 functions as a positioning member for the groove forming member 82.

  In the pair of groove forming members 82, side surfaces 82b that are outer surfaces of the bent portions are opposed to each other with a distance therebetween. Between the opposed pair of side surfaces 82b, the core 62 of the film roll 32A or the shaft 68 of the adapter 66 inserted into the film roll 32B is inserted. Accordingly, the pair of side surfaces 82b function as grooves in which the shaft member of the film roll 32 is mounted.

  The width adjusting mechanism changes the distance between the pair of side surfaces 82b, that is, the width of the groove in which the core 64 or the shaft 68 is accommodated, by moving the pair of groove forming members 82 in the direction of separating and approaching each other. The width adjusting mechanism 83 further includes a bolt (not shown) rotatably supported by the support plate 80 and a nut (not shown) fixed to the groove forming member 82 and meshing with the bolt. A knurled (not shown) is provided at the tip of the bolt, and one groove forming member 82 is moved in the left-right direction by rotating the knurled. Thereby, the other groove forming member 82 is also moved in the left-right direction via the width adjusting mechanism 83, and the distance between the pair of side surfaces 82b is changed.

  Thus, when the film roll 32A is used, the pair of groove forming members 82 can be moved so that the distance between the pair of side surfaces 82b is substantially the same as the outer diameter of the core 62. Further, when the film roll 32B is used, the groove forming member 82 can be moved so that the distance between the pair of side surfaces 82b is substantially the same as the outer diameter of the shaft 68. Therefore, both the film roll 32A and the film roll 32B having different shaft member diameters can be used. The width adjusting mechanism 83 may be provided so that the distance between the pair of side surfaces 82b can be changed by moving at least one of the pair of groove forming members 82.

  One of the two grooves 82c provided at the lower edge of the groove forming member 82 has a distance between the pair of side surfaces 82b substantially equal to the outer diameter of the core 62 when the leaf spring 92 enters. It is arranged to be a distance. The other of the two grooves 82c is arranged such that the distance between the pair of side surfaces 82b is substantially the same as the outer diameter of the shaft 68 when the leaf spring 92 enters. Therefore, the user can easily position the pair of groove forming members 82 by confirming whether or not the leaf spring 92 has entered the groove 82c.

(Second Embodiment)
FIGS. 6A and 6B are perspective views of the mounting mechanism 120 according to the second embodiment. The configuration of the packaging apparatus is the same as that of the first embodiment except that a mounting mechanism 120 is provided instead of the mounting mechanism 30.

  The mounting mechanism 120 includes a support plate 122 and a mounting member 124. The support plate 122 is formed by bending or press-molding a flat plate so as to provide a recessed portion 122a extending in the vertical direction. A groove 122c having a width larger than the outer diameter of the shaft 68 is provided in the recess 122a. In the recess 122a, the pair of left and right side surfaces 122b are provided so as to be separated from each other by a distance substantially the same as the outer diameter of the core 62. For this reason, a pair of side surface 122b functions as a groove | channel by which the shaft member of 32 A of film rolls is mounted | worn.

  In the second embodiment, the mounting member 124 is attached to the support plate 122 when the film roll 32B is mounted. Therefore, the mounting member 124 functions as an adapter. The mounting member 124 is a plate-like member formed in a U shape so that the thickness is the same as the depth of the recessed portion 122a, and a protruding portion 124c that protrudes outward is provided at the upper upper end portion. . The distance between the pair of left and right side surfaces 124b of the mounting member 124 is substantially the same as the distance between the pair of side surfaces 122b of the support plate 122, and the mounting member 124 can be accommodated in the recessed portion 122a of the support plate 122. Is provided. The mounting member 124 is fixed to the support plate 122 when the protrusion 124c is screwed to the support plate 122 after being accommodated in the recess 122a. Accordingly, the recessed portion 122a functions as a mounted portion to which the mounting member 124 can be attached.

  The recessed portion 122a functions as a mounted portion where the mounting member 124 can be mounted. The mounting member 124 has a groove 124a extending in the vertical direction. The width of the groove 124 a is substantially the same as the outer diameter of the shaft 68 that is smaller than the core 64. For this reason, it is possible to attach the film roll 32B to the attachment member 124 by attaching the attachment member 124 to the recess 122a. Therefore, when the mounting member 124 is attachable in this way, both the film roll 32A and the film roll 32B can be mounted.

(Third embodiment)
FIGS. 7A and 7B are perspective views of the mounting mechanism 150 according to the third embodiment. The configuration of the packaging device is the same as that of the first embodiment except that a mounting mechanism 150 is provided instead of the mounting mechanism 30. Hereinafter, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The mounting mechanism 150 is configured similarly to the mounting mechanism 30 according to the first embodiment except that a width adjusting mechanism 151 is provided instead of the width adjusting mechanism 83. The width adjusting mechanism 151 includes a cam 152, a shaft 154, and a coil spring 156. The cam 152 is disposed between the pair of side surfaces 82b and is rotatably supported on the support plate 80 by a shaft 154. End portions of coil springs 156 are attached to the lower edge portions of the pair of side surfaces 82b, respectively. The coil spring 156 applies a tensile force to the pair of groove forming members 82 so that the pair of groove forming members 82 are close to each other. The pair of side surfaces 82 b are pressed against the outer periphery of the cam 152 by the pulling force of the groove forming member 82.

  The shaft 154 is fixed to a lever (not shown) disposed on the back surface of the support plate 80. The user can rotate the cam 152 by rotating this lever. As the cam 152 rotates, the distance between the pair of side surfaces 82b can be changed. By using the cam 152 in this way, the distance between the pair of side surfaces 82b functioning as grooves for mounting the film roll 32 can be changed, and it corresponds to a plurality of types of shaft members of the film roll 32. be able to.

(Fourth embodiment)
FIGS. 8A and 8B are perspective views of the mounting mechanism 180 according to the fourth embodiment. The configuration of the packaging device is the same as that of the first embodiment except that a mounting mechanism 180 is provided instead of the mounting mechanism 30. Hereinafter, the same portions as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The mounting mechanism 180 is configured similarly to the mounting mechanism 30 according to the first embodiment except that a width adjusting mechanism 181 is provided instead of the width adjusting mechanism 83. The width adjusting mechanism 181 has a rod 182 and a shaft 184. The center of the rod 182 is supported by the shaft 184. The shaft 184 is disposed between the pair of side surfaces 82 b and is rotatably supported by the support plate 80.

  In the fourth embodiment, each of the pair of groove forming members 82 is provided with a guide hole 82d that is a long hole extending in the vertical direction. Pins 186 are attached to both ends of the rod 182, and the pins 186 are inserted into the guide holes 82d. The shaft 184 is fixed to a lever (not shown) disposed on the back surface of the support plate 80. The user can rotate the shaft 184 by rotating the lever. By rotating the shaft 184, the rod 182 rotates and moves in a direction in which the pair of groove forming members 82 are separated from and approach each other via the pins 186. Thus, the distance between the pair of side surfaces 82b can be changed. By using the rod 182 in this way, the distance between the pair of side surfaces 82b functioning as grooves for mounting the film roll 32 can be changed, and it corresponds to the shaft members of a plurality of types of film rolls 32. be able to.

(Fifth embodiment)
FIG. 9A is a perspective view of the mounting mechanism 200 according to the fifth embodiment, and FIG. 9B is a diagram of the mounting mechanism 200 viewed from the viewpoint P of FIG. 9A. The configuration of the packaging apparatus is the same as that of the first embodiment except that a mounting mechanism 200 is provided instead of the mounting mechanism 30.

  The mounting mechanism 200 includes a support plate 202, a mounting member 204, a shaft 210, and a coil spring 212. The support plate 202 is formed by bending a flat plate so that a concave portion 202a extending in the vertical direction is formed at the center. A groove 202b having a width larger than the outer diameter of the shaft 68 is formed in the recess 202a. In the recess 202a, the pair of left and right side surfaces 202c are provided so as to be separated from each other by a distance substantially the same as the outer diameter of the core 62. For this reason, the pair of side surfaces 202c function as grooves in which the shaft member of the film roll 32A is mounted.

  The mounting member 204 is formed in a plate shape thinner than the depth of the recessed portion 202a and has a U-shaped outer shape. The mounting member 204 has a groove 204a extending in the vertical direction. The width of the groove 204 a is substantially the same as the outer diameter of the shaft 68. The shaft 68 is inserted into the groove 204a when the film roll 32B is mounted. The width in the left-right direction of the mounting member 204 is substantially the same as the distance between the pair of side surfaces 202c. At the upper end of the mounting member 204, a tapered portion 204b that is inclined so as to approach the back surface as it approaches the upper end is provided.

  Four shafts 210 are attached to the back surface of the mounting member 204 so as to protrude rearward. The recess 202a is provided with four insertion holes 202d, and the four shafts 210 are respectively inserted into the four insertion holes 202d. Thus, the mounting member 204 is accommodated in the recessed portion 202 a of the support plate 202.

  At this time, the coil spring 212 is inserted into the shaft 210 so that the coil spring 212 is disposed between the support plate 202 and the mounting member 204. The coil spring 212 applies a biasing force that pushes forward to the mounting member 204.

  A stopper pin 206 is attached to the side surface 202 c of the support plate 202. The stopper pin 206 abuts on the upper portion of the tapered portion 204b. A recessed portion 204c that is recessed from the front surface is provided below the mounting member 204. The stopper pin 208 abuts on the recess 204c.

  The mounting member 204 is biased forward by the coil spring 212, but is further prevented from moving forward by contacting the stopper pin 206 and the stopper pin 208. The stopper pin 206 and the stopper pin 208 are arranged so that the front surface of the mounting member 204 and the front surface of the support plate 202 are positioned on substantially the same plane when the mounting member 204 abuts. The position of the mounting member 204 when the mounting member 204 contacts the stopper pin 208 in this way is referred to as an “advance position”.

  FIG. 10A is a top view of the mounting mechanism 200 when the film roll 32B is mounted. When the film roll 32B is mounted on the mounting mechanism 200 from above, the shaft 68 of the adapter 66 inserted into the core 64 of the film roll 32B is inserted into the groove 204a of the mounting member 204 and the groove 202b of the support plate 202. . Thus, the film roll 32B is mounted on the mounting mechanism 200.

FIG. 10B is a top view of the mounting mechanism 200 when the film roll 32A is mounted. When the film roll 32A is mounted on the mounting mechanism 200 from above, the core 62 of the film roll 32A comes into contact with the tapered portion 204b of the mounting member 204. By further pressing down the film roll 32A, the core 62 slides on the tapered portion 204b, and the mounting member 204 moves backward against the urging force of the coil spring 212. Thus, the end portion of the core 62 protruding from the film 34 is accommodated and positioned between the pair of side surfaces 202c, and the film roll 32A is mounted on the mounting mechanism 200. In this way, the position of the mounting member 204 when moved backward to insert the core 62 between the pair of side surfaces 202c is referred to as a “retracted position”. The core 62 moves from the advanced position to the retracted position so as to be accommodated between the pair of side surfaces 252c, and when the shaft 68 is mounted, the shaft 68 moves from the retracted position to the advanced position so that it can be accommodated in the groove 204a. In this way, by moving the mounting member 204 back and forth in parallel with the extending direction of the film roll 32, the user operates the lever and attaches the mounting member that is an adapter, without performing operations such as attaching the mounting member as an adapter. Either of the rolls 32B can be easily mounted on the mounting mechanism 200.

(Sixth embodiment)
FIG. 11 is a perspective view of a mounting mechanism 250 according to the sixth embodiment. Hereinafter, the same portions as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The mounting mechanism 250 includes a support blade 252, a mounting member 254, and a coil spring 256. The support plate 202 is formed by bending a flat plate so that a concave portion 252a extending in the vertical direction is formed at the center. A groove 252b having a width larger than the outer diameter of the shaft 68 is formed in the recess 252a. In the recessed portion 252a, the pair of left and right side surfaces 252c are provided so as to be separated from each other by substantially the same distance as the outer diameter of the core 62. For this reason, a pair of side surface 252c functions as a groove | channel in which the shaft member of 32 A of film rolls is mounted | worn.

  The mounting member 254 is formed in a plate shape thinner than the depth of the recess 252a, and has a U-shaped outer diameter. The mounting member 254 has a groove 254a extending in the vertical direction. The width of the groove 254a is substantially the same as the outer diameter of the shaft 68. The shaft 68 is inserted into the groove 254a when the film roll 32B is mounted. The width in the left-right direction of the mounting member 254 is substantially the same as the distance between the pair of side surfaces 252c.

  The recess 252 a of the support brace 252 has a length in the vertical direction that is approximately twice that of the mounting member 254. For this reason, the mounting member 254 accommodated in the recess 252a can move in the vertical direction inside the recess 252a.

  A bottom surface 252d is provided below the recess 252a. A coil spring 256 is disposed between the recessed portion 252a and the lower surface 254c of the mounting member 254. The coil spring 256 functions as a compression spring and applies an upward biasing force to the mounting member 254.

  FIG. 12A is a front view of the mounting mechanism 250 when the film roll 32B is mounted. Stopper pins 258 are provided on both side surfaces of the mounting member 254, respectively. Each of the side surfaces 252c of the support blade 252 is provided with a guide hole (not shown) that is long in the vertical direction and into which the stopper pin 258 is inserted. The mounting member 254 is prevented from moving upward when the stopper pin 258 contacts the upper edge of the guide hole. The guide hole is provided so that the upper surface 254 b of the mounting member 254 is positioned on the same plane as the upper end of the support plate 252 when it comes into contact with the stopper pin 258. The position of the mounting member 254 when positioned at the top is referred to as an “advance position”.

  When the film roll 32 is mounted on the mounting mechanism 250 from above, the shaft 68 of the adapter 66 inserted into the core 64 of the film roll 32B is inserted into the groove 254a of the mounting member 254. Thus, the film roll 32B is mounted on the mounting mechanism 250.

  FIG. 12B is a front view of the mounting mechanism 250 when the film roll 32A is mounted. When the film roll 32A is mounted on the mounting mechanism 250 from above, the core 62 of the film roll 32A comes into contact with the upper surface 254b of the mounting member 254. By further pressing down the film roll 32A, the mounting member 254 is pressed down against the urging force of the coil spring 256. Thus, the core 62 of the film roll 32A is inserted and positioned between the pair of side surfaces 252c, and the film roll 32A is mounted on the mounting mechanism 250. The position of the mounting member 254 when the core 62 is moved downward to insert the core 62 between the pair of side surfaces 252c is referred to as a “retracted position”.

  As described above, the mounting member 254 moves from the advanced position to the retracted position so that the core 62 is accommodated between the pair of side surfaces 252c when the core 62 is mounted, and when the shaft 68 is mounted, the shaft 62 68 is moved from the retracted position to the advanced position so that 68 can be accommodated in the groove 254a. As described above, both the film roll 32A and the film roll 32B can be easily operated by moving the mounting member 254 in the vertical direction without the user operating the lever or attaching the mounting member as an adapter. The mounting mechanism 250 can be mounted.

  Note that the mounting mechanism 250 may be configured so that the coil spring 256 is not provided and can be fixed with screws at the advanced position and the retracted position. The screwing holes may be provided in both the mounting member 254 and the support blade 252 so that the mounting member 254 can be fixed at both the advanced position and the retracted position. Thus, when the film roll 32A is used, the mounting member 254 can be fixed at the retracted position and the film roll 32A can be used. When the film roll 32B is used, the mounting member 254 is fixed at the advanced position and the film roll 32B can be fixed. Can be used.

  In this aspect, instead of the guide holes of the stopper pin 258 and the support plate 252 into which the stopper pin 258 is inserted, a guide hole that is long in the vertical direction in which a screw is inserted may be provided in the support plate 202. Thereby, the mounting member 254 can be fixed by screwing the screw into the screw hole provided in the mounting member 254 through the guide hole of the support plate 202. In addition, the mounting member 254 can be moved between the advanced position and the retracted position without removing the mounting member 254 from the support blade 252 simply by loosening the screw.

(Seventh embodiment)
FIG. 13 is a view showing a support plate 122 according to the seventh embodiment. The configuration of the mounting mechanism according to the seventh embodiment is the same as that of the mounting mechanism 120 according to the second embodiment unless otherwise specified. Hereinafter, the same portions as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  A guide member 300 is attached to the support plate 122 according to the seventh embodiment. The guide member 300 includes a guide portion 300a that is inclined so as to guide the protruding core 62 to the recessed portion 122a by gravity. By providing the guide member 300 in this manner, when the film roll 32A having the protruding core 62 is mounted on the support plate 122, simple mounting is possible.

  The present invention is not limited to the above-described embodiments, and an appropriate combination of the elements of each embodiment is also effective as an embodiment of the present invention. Various modifications such as design changes can be added to each embodiment based on the knowledge of those skilled in the art, and embodiments to which such modifications are added can also be included in the scope of the present invention.

  DESCRIPTION OF SYMBOLS 10 Packaging apparatus, 16 paper feed tray, 30 loading mechanism, 32, 32A, 32B film roll, 34 film, 60 film, 62, 64 cores, 66 adapter, 68 shaft, 80 support plate, 80a dent, 80b groove, 82 Groove forming member, 82a guide hole, 82b side surface, 82c groove, 82d guide hole, 84 rack gear, 84a gear portion, 86 gear, 88 pin, 120 mounting mechanism, 122 support plate, 122a recess, 122b side surface, 122c groove, 124 Mounting member, 124a groove, 150 mounting mechanism, 152 cam, 154 shaft, 156 coil spring, 180 mounting mechanism, 182 rod, 184 shaft, 200 mounting mechanism, 202 support plate, 202a concave Parts, 202b groove 204 mounting member, 204a grooves, 204b taper portion, 204c recess.

Claims (4)

A mounting mechanism for mounting a film roll provided with a wrapping film wound using a shaft member protruding outward in the axial direction from the film,
The mounting mechanism has a groove in which the outer diameter of the shaft member is accommodated, and is provided so that the width of the groove can be changed. The mounting mechanism is
A first groove provided to accommodate the outer diameter of the first shaft member;
A mounted portion to which a mounting member provided with a second groove having a different width from the first groove so as to accommodate the outer diameter of the second shaft member can be attached;
The packaging apparatus according to claim 1, comprising: The mounting mechanism is
A pair of groove forming members each constituting an edge of the groove;
A width adjusting mechanism for changing the width of the groove by moving at least one of the pair of groove forming members;
The packaging apparatus according to claim 1, comprising: The mounting mechanism is
A first groove provided to accommodate the outer diameter of the first shaft member;
A second groove having a width different from that of the first groove is provided to accommodate the outer diameter of the second shaft member, and a predetermined position in the first groove is provided so that the second shaft member can be accommodated in the second groove. A mounting member arranged in
With
The packaging device according to claim 1, wherein when the first shaft member is mounted, the mounting member retracts from the predetermined position so that the first shaft member can be accommodated in the first groove.

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